Machine for attaching wire barbs to fence-wire



5 sheets-sheet 1.

(No Model.)

T. MGGOSH. MACHINE FOR ATTAGHING WIRE BABES TO FENCE WIRE.

Patented-- Dec; 18, 1883.

(No Model.) 5 Sheets-$11950 2..

T. MQOOSH. 4 MACHINE FOR ATTAGHING WIRE BARBS T0 FENGE WIRE. NO. 290,595. Patented Dec. 18, 1888.

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(No Model.) 5 Sheets-Sheet 3.

T. McC-OSH.

MACHINBPOR ATTAGHING WIRE-BABES T0 FENCE WIRE. No. 290,595. Patented-Dec. 18, 1883.

Wltn asses 5 Sheets-Sheet 4.

(NoModeL) T. MGOOSH.

MACHINE FOR ATTAGHING WERE BARBS T0 FENCE WIRE.

Patented. Dec. 18, 1883.

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(No Model.) 5 Sheets-Sheet 5.

T. MOCOSH.

MACHINE FOB. ATTAGHING WIRE BABES TO FENGE WIRE. No. 290,595. Patented Dec. 18,1883.

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a partial remedy, increased the labor of the NrTEn STATES,

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THOMPSON MOCOSH, OF' BURLINGTON, IOW'A.

SPECIFICATION forming part of Letters Patent No, 290,595, dated December 18, 188?.

Application filed March 13, 1882.

.T 0 (bid whom it may concern.-

Be it known that I, Tnonrsow MoCosn, a citizen of the United States, residing at. Burlington, in the county of Des Moines and State of Iowa, have invented a new and useful Improvement in Machines for Attaching vVire Barbs t0 Fenc'e-W'ire, of which the following is a specification.

This invention relates specially to the machine now in use for making wire-barbed fencewire, which wire is constructed in accordance with Letters Patent granted to M. 0. Shinn, March 1, 1881, X0. 238,447, saidpat-en'ted fencewire consisting of an inside and outside continuous wire and four pointed barbs formed by twisting two barbingwires around the in side continuous wire, so that the spirals of one of the barbing-wires occupy spiral spaces between and contiguous to the spirals of the other barbing-wire, said barbs being held in position by the continuous wires, which are twisted together after the barbing-wires have been cut oil from the formed barbs.

My invention consists in the combination of an adjustable eccentric for producing motion in contradistinction to a cam, with the carriage or feeding slide, twister mechanism, eutter mechanism, and the other relative parts and gearing of awire-barb-attaching machine, as will be hereinafter described.

. The object of my invention is to overcome a very serious objection to the wire-barb-attaching'machine above referred to, which has its carriage or feed-slide, twister, and cutter mechanisms operated by a rotary cam. The objection to the cam is that as the machine runs rapidly the cam and wrist-pin of the crank-shaft soon wear away, so as to cause a sensiblej a r at each changeofthe direction of the carriage, and the twister and cutter being con trolled bystationaiy devices formed with camsurfaces, their action becomes uncertain whenever the least change in the movements of the carriage takes place.

Heretofore,in order to obviate in some degree the difficulties experienced from change in movement of the carriage, and to prevent the jarring of the machine, air-cylinders were devised and applied, and these, although only machinery and the duty of the engine. By

my improvement the wire can be fed up to (No model.)

the work a fixed distance at a time to receive the barbs in their turn, and while this is the case there will not be that injurious jerking motion, nor will it be necessary to run the machine only fast enough to attach about seventy barbs a minute; but it will be practicable to speed the machine so that one hundred barbs can be attached per minute without any undue wear and tear of the parts, and, in fact, without as much injurious shaking or jarring as is experienced when the machine is run at the lower-mentioned speed and its feed-slide operated by a cam motion.

My improvement also provides for a regulation of the movement of the slide whenever the eccentric becomes worn to any appreciable extent.

In the accompanying drawings, Figure 1 represents a perspective view of a portion of a machine now in use for attaching wire barbs to fence-wires, and Fig. 2 a perspective view of av like portion of the same machine as improved by me. Fig. 3 is a plan view of a portion of the machine asimproved by me, the

twister for twisting the wires from the barbwire reels upon the main-wire reel S not be ing shown. Fig. 4 is a perspective view of the improved machine, showing a greater number of parts of the same than are represented in Fig. 2. Fig. 5 is a vertical longitudinal section of the machine essentially as shown in Fig. 2. Fig. 6 is a broken top diagram view; and Fig. 7 is a detail sectional view of the frame, carriage, and twister mechanism shown in Fig. 6, as well as in other views of the drawings.

A in Fig. 1 of the accompanying drawings is a cam having two oblique flanges parallel to each other, bet-ween which is a wrist-pin or roller, E, which is attached to an arm, B, of a rocking ,shaft, 0. rocking shaft works the pit-man L, which moves the slide or carriage F, and by a reciprocating motion this carriage should cause the wire to which the barbs are to be attached to be moved forward a certain fixed distance during each revolution of the cam A. By means of a slot, G, the pin of the pitman can be raised or depressed, so as to increase or decrease the throw of the carriage F at pleasure. This machine,

Another arm, K, of this which is common as far as described, was

useful, be run rapidly, and by being thus run the cam A and roller E soon wore, away, and in operating a very injurious jar at each change of the direction of the carriage was produced; and for taking up or compensating for the loss of motion due to the wear of the cam and roller E, air cylinders and pistons, as at D: D, were added to the machine 3 but while this saved the machine from becoming wholly impracti- I have secured by my inventionviz., of rendering it practicable to run the machine at a higher speed without increasing the liability of its rapid wear and destruction, and in case of appreciable wear for compensating therefor. i

In Figs. 2, 4i, and 5, G" is an eccentric upon a shaft, b The strap on of this eccentric is connected to the carriage d by means: ofapitman, 2', On the shaft 1) a bevel spur-wheel, a, is provided, and this wheel gears with another bevel-wheel, a, on a power-shaft, 60*, as shown, or in any other appropriate manner- The eccentric wheel 0, is provided with lugs 41., through which an adjusting-screw, it, passes, and by this means the strap andeccentric can.

either should become worn. If found necessary, perforated washers might be interposed between the lugs, and also arranged outside the same on the screw it, and these might be removed one at a time as occasion arises for tightening the eccentric.

In the several views of the improved machine the continuous wire-reels S S, the two barbing-wire reels S S, the barb-wire guides T, the barbed-wire drum R, the gears c (6* for moving said drum, the cutter f 3 and its stock f and lever J, the grooved cam-plate f for raising the said cutter, and'the toothed segmental device U, its actuating-cam U, and the twister d, are shown in working relation with the shafts c and I), slide d, gears c a, and the eccentric appliance designated by letters C m a n and Z.

It will be seen that the cutter-operating leverf is pivoted to the bracket f of the slide '61,, so that it may swing on said bracket, and when the slide is moved horizontally, for the purpose of feeding up the barb-applying devices d*, and effecting the twisting of the barbing-wires S S from reels S S upon the wire S from reel S, the front end of the lever f rises in the cam-grooved plate f with a gradual and positive movement, which movement gradually raises the cutter-stock f and cutterblades f thereof and by the time the slide has arrived at theend of the movement necessary for causing the cam-grooved plate U to operate the twister-actuating toothed segment U, and by said segment and the twister device (2* to twist the barbing-wires upon the wire S from reel S, the cutter will be in an elevated position directly in line with the adjustable oblique upper cutters, f 5 f ready for cutting off the barbs from the wires S S of the reels being accomplished, the lever is caused to descend in the cam-grooved plate f, while the lever end of the twister-actuating segment U moves back in the cam-grooved plate U and iadjusts the twister (1* for another operation.

The cutter and the twister-actuating segment 7 move from and to their normal positions in a cable, it did not accomplish the result which very regular and positive manner, on account This regular and positive 1not1on 1s very important in an organization where the twisting-segment and the cutter are operated by fixed cam-platessuch as f U, and this-motion is perfectly produced'by Y the eccentric mechanism which I have shown ;in combination with the cutting mechanism and twisting mechanism of wire-barbing-machines, said eccentric mechanism working unistrap m. forming the yoke or collar around the formly, and being capable of the nicest adjustlrnents to compensate for any wear or deviaition from the original proper relation of the parts, as hereinbefore described.

be made to fit snugly upon each other, case '1 lVhenever a change of the place of reciprocation of the carriage or feedslide d is re- ,quired, this can be effected with the constru 3 tion. shown in Fig. 2 by means of an extensionstruction shown in Fig. 2; also that, so far as the reciprocating motion of the slide for feed ing the wire to the mechanism for attaching the barbs to it is concerned, the only difference lies in the superior means by which the reciprocation is effected and regulated when appreciable wear occurs.

Operation Motion to the whole machine is imparted through the twister D by the spurwheels D D- One wheel or pinion of this. portion of the gearing is not shown in Fig. 4, be ing hidden from view by the friction-wheel D The power is furnished to the twister D by a counter-shaft underneath the floor and connected with the twister by belt D". The belt between the counter-shaft and main shaft is thrown from fast to loose pulleys, and the stopping and starting of the machine is effected by a lever and other parts, which, with mechanism (a part, D of which only is shown the same being an independent motion not, af-

fected by the improved eccentric mechanism to which my invention specially relates.

' The operation of those parts of the machine to which my improvement specially relates is as follows: The feed-slide or carriage d being moved forward by the eccentric 0, it causes the lever of thetwister-actuating segmentUt'o tram v the carriage or feed-slide causes the lever end of segment to travel downward, and thereby reverse the motion of the segment. W hile the carriage or feedslide is moved forward, as

above described, the lower movable cutter, f

consisting of two blades set in reversely-oblique directions on the stock ft, is forced up against the upper stationary adjustable cutter-blades,

f y, secured in a stationary stock, and as the wires from which the barbs are formed upon the wire S pass between the upper and lower cutter-blades these wires are cut by said blades at an angle, giving sharp points to the wire barbs when out off, and also forming sharp points on the wires from which the barbs are cut, which latter points make the two first sharp points for the next barb when the wire is fed forward. The wires S S" to be twisted are grasped by two pins or lugs of the twister device (1", which twist the same upon wire S as it is passed through the hollow spindle,which is turned far enough to accomplish this object by the teeth of the twisteractuating segment working in the pinion. The wires to be twisted are passed through grooves in the guides T, and they are held in place by these guides while being fed in and cut off.

In the operation of twisting, the eccentric causes the lever f to travel forward with the carriage or feed-slide, and said lever rises in the camgroove f and forces the lower blades upward and causes them to cut off the wires at an angle. A reverse movement causes the lever to move down the groove f and lower the cuttenblades foranother operation. After the barbs are applied and cut off the continuous wire S from reel S passes over the drum R with the barbed wire 8, andlies close upon the said wire and the barbs, and at a proper time the two wires are twisted by a twisting mechanism, D", which operates in a wellknown manner, and as fast as twisted the barbed wire is properlylaid and wound upon a drum, as illustrated in the drawings.

The machine, as herein described and shown, operates throughout all its parts in substantially the same manner as the well-known wire-barbing machine in use for making the patented barbed feneewire hereinbefore referredto, and it only differs from such machine in the greater perfection of its operation and in the greater rapidity with which it can be 0perated, which useful results are effected by combining the eccentric mechanism shown in Figs. 2, 4, and 5, in lieu of the cam mechanism shown in Fig. 1, with the feed-slide or carriage, twister and cutter mechanism, as herein described and shown.

The construction shown in Figs. 2, 4, and 5 works so much more readily than the construction shown in Fig. 1 that it will do at least forty per cent. more work and with less ar.

The importance of my invention, in its special relation to a wire-barb-attaching machine, will be seen when it is considered that the reversely-set oblique blades of the cutter which cuts off the. barb-wires must be moved in perfect accord with the mechanism which twists and finishes the barbs-that is, the cutting must take place instantly after finishing the barbs. Again, that when the motion of the feed-slide or carriage is effected by an eccentrie mechanism every machine of a shop will run exactly alike, whereas when the motion is produced by a cam not any two of a series of machines will run exactly alike, and consequently imperfections in their operations will be experienced.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In the machine herein described for at taching barbs to fence-wires, the combination of the eccentric C m and its rod Z, carriage or feeding-slide d, lever f grooved cam f, lower cutter, f upper cutter, f segmental toothed twister-actuating device U and its grooved cam U U twisting mechanism (1", drivingshafts a Z), gearing a a a a1, and drum R, substantially as and for the purpose herein described.

2. In amachine for attaching barbs to fencewires, the combination, with the feeding-slide (Z, cutter f and its operating mechanism f f", and the driving-shafts a h, of the adj ust able eccentric O m a a and its rod Z, in the manner herein described and shown, and for the purpose set forth.

THOMPSOX McGOSI-I.

W'itn esses:

ALBERT COTSWORTH, J no. A. McCosi-r. 

